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Central beta rhythm during sensorimotor activities in man

Electroencephalography and Clinical Neurophysiology, 1981
Blocking or desynchronization of the central beta rhythm prior to and parallel to voluntary movement was found in 31 of 33 normal subjects investigated. The beta blocking was short lasting (1-3 sec), very often accompanied by blocking of the mu rhythm and localized in the central region.
G Pfurtscheller
exaly   +3 more sources

Increased beta rhythm as an indicator of inhibitory mechanisms in tourette syndrome [PDF]

open access: yesMovement Disorders, 2015
ABSTRACTBackgroundInhibitory oscillatory mechanisms subserving tic compensation have been put forward in Tourette syndrome. Modulation of the beta rhythm (15–25 Hz) as the well‐established oscillatory movement execution‐inhibition indicator was tested during a cognitive‐motor task in patients with Tourette syndrome.MethodsPerforming a Go/NoGo task, 12 ...
Niccolai, Valentina   +11 more
openaire   +4 more sources

Age, Sex Hormones, and Circadian Rhythm Regulate the Expression of Amyloid-Beta Scavengers at the Choroid Plexus [PDF]

open access: yesInternational Journal of Molecular Sciences, 2020
Accumulation of amyloid-beta (Aβ) in the brain is thought to derive from the impairment of Aβ clearance mechanisms rather than from its overproduction, which consequently contributes to the development of Alzheimer’s disease.
Ana C Duarte   +2 more
exaly   +2 more sources

Model neocortical microcircuit supports beta and gamma rhythms

2021 10th International IEEE/EMBS Conference on Neural Engineering (NER), 2021
Gamma and beta rhythms in neocortical circuits are thought to be caused by distinct subcircuits involving different type of interneurons. However, it is not clear how these distinct but inter-linked intrinsic circuits interact with afferent drive to engender the two rhythms. We report a biophysical computational model to investigate the hypothesis that
Feng Feng   +2 more
openaire   +2 more sources

New Roles for the Gamma Rhythm: Population Tuning and Preprocessing for the Beta Rhythm

Journal of Computational Neuroscience, 2003
Gamma (30-80 Hz) and beta (12-30 Hz) oscillations such as those displayed by in vitro hippocampal (CA1) slice preparations and by in vivo neocortical EEGs often occur successively, with a spontaneous transition between them. In the gamma rhythm, pyramidal cells fire together with the interneurons, while in the beta rhythm, pyramidal cells fire on a ...
Mette S. Olufsen   +3 more
openaire   +3 more sources

Anatomical localization of cortical beta rhythms in cat

Neuroscience, 1987
Beta electrocorticographic rhythms (40 Hz) develop during motionless focused attention in two distinct cortical foci in cats. A cytoarchitectonic study was performed to determine the precise location of these foci. Electrode tips recording beta rhythms were found: (i) in motor areas 4 gamma and 6a beta, in a band extending from the postcruciate cortex ...
J J, Bouyer   +4 more
openaire   +2 more sources

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